【新华社】我国科学家实现纠缠增强纳米尺度单自旋量子传感

Core Insights - The research team from the University of Science and Technology of China and Zhejiang University has made significant advancements in the field of quantum precision measurement at the nanoscale, achieving entanglement-enhanced single-spin detection in noisy environments [1][2] - The findings were published in the prestigious journal "Nature," highlighting the importance of this breakthrough for understanding fundamental magnetic properties and advancing quantum technology [1] Group 1: Technological Advancements - The research team has developed a complete process for the autonomous preparation of high-quality diamond quantum sensors, mastering over twenty key steps in the process [2] - A novel entanglement-enhanced nano single-spin detection technology has been successfully developed, improving sensitivity and spatial resolution for microscopic magnetic signal detection [2] Group 2: Key Achievements - The technology has achieved three major advancements: distinguishing and detecting two adjacent "dark" electron spins, enhancing detection sensitivity by 3.4 times in noisy environments, and enabling real-time monitoring and active control of unstable spin signals [2] - The results validate the advantages and potential of quantum entanglement in nanoscale sensing, positioning diamond quantum sensors as powerful tools for research in condensed matter physics, quantum biology, and chemistry [2]